$OpenBSD: patch-acinclude_m4,v 1.2 2017/03/27 10:08:16 fcambus Exp $

Don't error on --disable-silent-rules.

--- acinclude.m4.orig	Fri Oct 26 23:33:44 2012
+++ acinclude.m4	Fri Oct 26 23:34:21 2012
@@ -242,7 +242,7 @@ fi[]dnl
 # -------------
 AC_DEFUN([VICE_ARG_INIT],
 [
-vice_arg_enable_list="dependency-tracking"
+vice_arg_enable_list="silent-rules gtk-doc dependency-tracking"
 vice_arg_with_list="x"
 ])# VICE_ARG_INIT
 
